Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!uwm.edu!zaphod.mps.ohio-state.edu!think!mintaka!bloom-beacon!EXPO.LCS.MIT.EDU!rws
From: rws@EXPO.LCS.MIT.EDU (Bob Scheifler)
Newsgroups: comp.windows.x
Subject: Re: Reverse-video window dumps
Message-ID: <9002241732.AA02864@expire.lcs.mit.edu>
Date: 24 Feb 90 17:32:30 GMT
References: <1990Feb23.212741.11966@Neon.Stanford.EDU>
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 9


    xipr is just a shell script that pipes the output of "xwd" into the
    program "bitimp", so I don't know if xwd or bitimp is at fault.  A
    quick look at the code suggests that neither program checks to see
    whether a black pixel is represented by 0 or 1.

xwd just dumps "the truth", it doesn't need to check.  I'd say bitimp
is at fault.  If you have an R4 xwd, try using the "-add 1" option to
flip the bits.